http://codex.wordpress.org/Creating_Tables_with_Plugins
On that page it says You must have two spaces between the words PRIMARY KEY and the definition of your primary key''
but then the example does not actually specify a primary key, it specifies a unique key - and does not appear to have two spaces.
What is the right thing to do to work with dbDelta ??
-=-
Secondly, can I use the CHECK feature to restrict the values a column can have or is that not supported if using dbDelta?